CVE-2024-21412 — AI Deep Analysis Summary

Q: Root Cause? (CWE/Flaw)

🛡️ **CWE ID**: **CWE-693** (Protection Mechanism Failure). 🔍 **Flaw**: The system fails to properly validate or protect Internet Shortcut files, allowing malicious payloads to bypass security controls.

Q: Who is affected? (Versions/Components)

📦 **Affected Products**: • Windows 10 Version 21H2 (x64) • Windows Server 2022 (Server Core) • Windows 11 Version 22H2 (ARM64) • Other Windows versions listed in the advisory.

Q: Is exploitation threshold high? (Auth/Config)

⚠️ **Threshold**: **Medium**. • **Auth**: No authentication required (PR:N). • **UI**: Requires **User Interaction** (UI:R) – victim must click the malicious shortcut/link. • **Network**: Remote (AV:N).

Q: Is there a public Exp? (PoC/Wild Exploitation)

🔓 **Public Exp?**: **YES**. • PoC available on GitHub (e.g., `CVE-2024-21412_Water-Hydra`). • Demonstrates full chain: WebDAV setup → Malicious Shortcut → Defender Bypass → Execution.

Q: Is it fixed officially? (Patch/Mitigation)

✅ **Fixed?**: **YES**. • Microsoft released an official update. • Visit **MSRC Update Guide** for the latest patch. • Apply the security update immediately.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **HIGH**. • CVSS Score indicates **High** impact (C:H, I:H). • Active PoC exists. • Easy to exploit via social engineering. • **Patch NOW** to prevent compromise.

Updated May 06, 2026 CVSS 8.1 · High

This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis →

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Microsoft Windows Internet Shortcut Files have a **Security Feature Bypass** vulnerability.…

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Q2Root Cause? (CWE/Flaw)

🛡️ **CWE ID**: **CWE-693** (Protection Mechanism Failure). <br>🔍 **Flaw**: The system fails to properly validate or protect Internet Shortcut files, allowing malicious payloads to bypass security controls.

Q3Who is affected? (Versions/Components)

📦 **Affected Products**: <br>• Windows 10 Version 21H2 (x64) <br>• Windows Server 2022 (Server Core) <br>• Windows 11 Version 22H2 (ARM64) <br>• Other Windows versions listed in the advisory.

Q4What can hackers do? (Privileges/Data)

💀 **Attacker Actions**: <br>• **Initial Access**: Use AQS links or `search:` protocols to redirect to malicious WebDAV shares.…

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Q5Is exploitation threshold high? (Auth/Config)

⚠️ **Threshold**: **Medium**. <br>• **Auth**: No authentication required (PR:N). <br>• **UI**: Requires **User Interaction** (UI:R) – victim must click the malicious shortcut/link. <br>• **Network**: Remote (AV:N).

Q6Is there a public Exp? (PoC/Wild Exploitation)

🔓 **Public Exp?**: **YES**. <br>• PoC available on GitHub (e.g., `CVE-2024-21412_Water-Hydra`). <br>• Demonstrates full chain: WebDAV setup → Malicious Shortcut → Defender Bypass → Execution.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: <br>• Scan for suspicious `.lnk` files pointing to WebDAV or `search:` protocols. <br>• Monitor for unusual network connections to SMB/WebDAV shares.…

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Q8Is it fixed officially? (Patch/Mitigation)

✅ **Fixed?**: **YES**. <br>• Microsoft released an official update. <br>• Visit **MSRC Update Guide** for the latest patch. <br>• Apply the security update immediately.

Q9What if no patch? (Workaround)

🛑 **No Patch?**: <br>• **Disable** WebDAV if not needed. <br>• **Block** `search:` protocol abuse via Group Policy. <br>• **Educate** users not to click unknown shortcuts.…

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Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **HIGH**. <br>• CVSS Score indicates **High** impact (C:H, I:H). <br>• Active PoC exists. <br>• Easy to exploit via social engineering. <br>• **Patch NOW** to prevent compromise.

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Vulnerability detail Full AI analysis (login) Microsoft CWE-693